I've done the procedure several times before and never had any real problems with it. Suddenly all my backup data seems to be corrupt and after an hours wait always gives the below message.
+++++++++++++++++++++ Restoring Config Data +++++++++++++++++++++
Sanity checking for pre config data restore/import ...
Config file size check OK ...
ERROR: Config data cannot be extracted for sanity check!
Pre-restore/import sanity check on config data failed!
The system is left unchanged. Please retry or reboot to bring back the system!
Can't restore the configuration table. Quit!